Aqua Regia

Views Updated: Dec 15, 2025

Abbreviation

Pronunciation

/ˈæk.wə ˈriː.dʒi.ə/

Superior corrosion resistance, no corrosion in acids 、 alkali and aqua regia.
It is lead gray powder with good chemical stability, which is soluble in aqua regia, hot nitric acid and dense nitric acid and insoluble in dilute sulfuric acid and organic solvents.
Being dissolved by aqua regia, concentrated by active carbon, and re-dissolved after incinerating to remove carbon, the amounts of palladium and gold in the samples can be directly analyzed by aas.
In the chemical, the famous strong corrosive " aqua regia " can swallow silver, gold, as well as the known as the " stainless " in stainless steel erosion, becoming mottled rust beyond recognition.
The metal osmium is very stable in the air, the melting point is2700 degrees Celsius, it does not dissolve in the ordinary acid, will not be corroded in the aqua regia.

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